The random sequential adsorption (RSA) approach was used to model irreversible adsorption of colloid particles at surfaces precovered with smaller particles having the same sign of surface charge. Numerical simulations were performed to determine the initial flux of larger particles as a function of
Electrokinetics of particle covered surfaces
✍ Scribed by Zbigniew Adamczyk; Małgorzata Nattich; Maria Zaucha
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 390 KB
- Volume
- 15
- Category
- Article
- ISSN
- 1359-0294
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✦ Synopsis
This article reviews recent developments in the field of streaming current/potential determination for surfaces covered by particles, including polyelectrolytes and proteins. Special emphasis is focused on the new theoretical results enabling one to evaluate quantitatively the relationship between the streaming potential and surface coverage of particles. Experimental results obtained for model systems of monodisperse polymeric particles are discussed and interpreted in terms of the theoretical approach. These reference data are exploited for interpretation of more complex experimental results obtained for polyelectrolytes and proteins. A major utility of the streaming potential measurements for determination of submonolayer coverages of particles and proteins is pointed out.
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